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Information × Registration Number 0218U006033, 0113U000036 , R & D reports Title "Structural stability and phase transformations of intermetallic compounds and solid solutions of d-transitional metals, perspective for creation alloys are with the high temperature of shape memory effect" popup.stage_title Head Koval Yuri Mekolaevich, Registration Date 07-03-2018 Organization Institute for metal physics NAS Ukkraine popup.description2 Principles of selection attractive high temperature shape memory alloys are created. The reason of limitation shape memory effect and thermoelastisity in these materials are also found. Dependence martensitic temperatures vs. parameters electronic structures and atomic dimensions for quasibinary Cu(Ni,Co)-Zr(Ti) was found. Two main groups of compositions with different character of martensitic transformation were appeared. In first, one martensitic phase is formed. In second two martesitic phases are formed. The max temperature of martensitic transformation not more than 500-600 K (0,35-0,45 Tmelt) for first group and martensitic transformation is thermoelastic. However martenstic transformation are appeared at more highest temperatures upto 1000 K (0,7-0,75 Tmelt) for second group. This transformation is not always thermoealstic. Firstly discovered considerable shape recovery in non thermoelastic martensitic transformation. Completely shape recovery was also found under special parameters of loading. New way for high temperature shape memory effect enhancing are suggested. It was found that 10% of martensitic recovery deformation was achieved in case Ni3Ta. Shape recovery at temperatures more than 1000K are also achieved like in intermetallic HfIr. New micromagnetic theory for magnetic shape memory alloys on based Ni2MnGa are presented. Influence of atomic and composition ordering on parameters martensitic transformation for alloys on based Fe-Ni, Fe-Ni-Sm, Fe-Pt.5481 Product Description popup.authors Бублей Ірина Роальдівна Кедровський Сергій Миколайович Коломицев Віктор Ілліч Кудрявцев Юрій Васильович Ліхачев Олександр Анатолієвич Лободюк Валентин Андрійовмч Мусієнко Раїса Яківнва Неганов Леонид Михайлович Односум ВалерійВладиславович Пономарьова Світлана Олександрівна Сич Тетяна Григорівна Сліпченко Вікторія Миколаївна Фірстов Георгій Сергійович popup.nrat_date 2020-04-02 Close